SIRIUS auxiliary contactor, 2 NO, S00 frame
The Siemens 3RH1122-1AF00-ZW98 is a SIRIUS auxiliary contactor in the compact S00 frame size, delivering 2 instantaneous normally-open contacts for control-circuit switching in motor starter and PLC output isolation applications. Rated 10 A at 24 V and 6 A at 230 V, with a surge voltage resistance of 6 kV, this contactor handles pilot duty and signal-level loads across a typical 24 VDC to 690 VAC range. The 45 mm width and 72 mm depth fit standard DIN-rail enclosures; the screw and snap-on mounting allows both screw-fixed and rail-clip installation without adapter plates. Mechanical life is rated at 30 million operations typical, and contact reliability is specified at one failure per 100 million switching cycles at 17 V, 1 mA — a figure that matters for low-energy signal circuits where oxide films can cause intermittent opens.
Mounting and integration
Mounts on DIN rail via snap-on or directly with screws. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward. Terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². Pollution degree 3 rating means the contactor is suited for industrial environments with conductive dust or condensation — no additional conformal coating needed for most panel builds. IP20 protection on the front face keeps fingers and tools out of the live terminals; the contactor is intended for installation inside a locked or tool-accessible enclosure.
Environmental and lifecycle
Operating temperature range is -25 to +60 °C; storage and transport range extends to -55 to +80 °C. Shock resistance is 10g for 5 ms and 5g for 10 ms, covering most vibration profiles in conveyor and pump panels. Substance prohibition compliance references date 07/01/2006, aligning with RoHS and REACH substance restrictions effective from that date.